A Tasmanian farmer is driving a campaign to have the thousands of animals killed on the state's roads each year turned into pet food or fertiliser.

Tasmania has the reputation of being the roadkill capital.

Scientists estimate that 300,000 animals die on the state's roads each year, including about 3,000 Tasmanian devils.

The roadkill is cleaned up weekly by contractors employed by the State Government.

But former state MP and farmer Allison Ritchie does not want the roadkill going to waste; she says it could be recycled.

"There are other places around the world, and in particular in the US, where composting roadkill is actually going on in a number of states," Ms Ritchie said.

"They're turning it into fertiliser, animal products, animal food...making it into dog food.

"Like many people would know, kangaroos are regularly used by farmers and all sorts of pet owners as dog tucker."

Wildlife park owner Greg Irons has more than 1,000 volunteers who look after the baby animals which survive when their mothers die on the roads.

"[We get] everything from devils to quolls to some of our more common species like wallabies and possums, pademelons, everything from bandicoots to betongs...because unfortunately cars will just take out everything in their way," he said.

'Roadkill capital of the world'

"The roadkill issues in Tasmania are quite phenomenal. We are the roadkill capital of the world compared to our size."

"These animals that are left on the road are not only sitting there wasting away and making Tasmania look absolutely terrible to all of our tourists, but they are also an attractor for secondary roadkill.

"So animals that come and feed on them and then get run over themselves.

"I think a whole number of benefits could come from it. I think it is a good idea."

Ms Ritchie is sure many Tasmanians would use the composted roadkill on farms and gardens.

"People recycle sheep droppings, you regularly see people selling sheep poo on the side of the road in our local of area," Ms Ritchie said.

"Those sort of things don't last long. People are very quick to buy them so I do think there is a market for recycled roadkill potentially in Tasmania."